更改iOS导航栏的颜色 [英] Change the color of iOS Navigation Bar

问题描述

我正在尝试更改导航器栏的颜色，但是我发现只有导航器是根导航器，这才是不可能的.

I'm trying to change the color of my navigator bar but I found that it's only impossible if the navigator is the root one.

我正在尝试:

self.navigationController?.navigationBar.translucent = true

self.navigationController!.navigationBar.barTintColor = UIColor.blueColor()

我的所有Viewcontrollers与导航器控制器有关.但是什么都没有改变.实际上，我尝试从情节提要中进行相同的操作，但只有在我处于第一个导航器中时，它才有效.

All my Viewcontrollers are related to navigator controllers. However nothing is changed. In fact I tried to make the same things from storyboard but it works only if I'm in the first navigator.

我试图阅读与此问题相关的所有内容，但未找到任何内容

I tried to read everything related to this problem but found nothing

我可以将任何项目添加到导航器栏中

I could add any item to the navigator bar like this

let HomeImage = UIImage(named: "home")!
    let Home : UIBarButtonItem = UIBarButtonItem(image: HomeImage,  style: .Plain, target: self, action: "home:")
    navigationItem.rightBarButtonItem = Home

推荐答案

事实上，我发现该解决方案要在AppDelegate.siwft中使用:

In fact, i found that the solution was to use in the AppDelegate.siwft :

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
    // Override point for customization after application launch.
    UINavigationBar.appearance().barTintColor = UIColor(red: 0, green: 0/255, blue: 205/255, alpha: 1)
    UINavigationBar.appearance().tintColor = UIColor.whiteColor()
    UINavigationBar.appearance().titleTextAttributes = [NSForegroundColorAttributeName:UIColor.whiteColor()]

    return true
}

然后在每个视图控制器中，我们需要另一种背景色或其他颜色

and then in each view controller, that we need another background color or something else

1. segue应该不同于"show"

1. the segue should be different than "show"

使用func viewWillAppear

 override func viewWillAppear(animated: Bool) {
     super.viewWillAppear(animated)
     self.navigationController?.navigationBar.barTintColor = UIColor.whiteColor()
     self.navigationController?.navigationBar.tintColor = UIColor.blueColor()
     self.navigationController!.navigationBar.titleTextAttributes = [NSForegroundColorAttributeName: UIColor.blueColor()]
}

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